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decklink_common.h
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1 /*
2  * Blackmagic DeckLink common code
3  * Copyright (c) 2013-2014 Ramiro Polla, Luca Barbato, Deti Fliegl
4  * Copyright (c) 2017 Akamai Technologies, Inc.
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVDEVICE_DECKLINK_COMMON_H
24 #define AVDEVICE_DECKLINK_COMMON_H
25 
26 #include <DeckLinkAPIVersion.h>
27 
28 #include "libavutil/thread.h"
29 #include "decklink_common_c.h"
30 
33 
34 typedef struct AVPacketQueue {
37  unsigned long long size;
42  int64_t max_q_size;
44 
45 struct decklink_ctx {
46  /* DeckLink SDK interfaces */
47  IDeckLink *dl;
48  IDeckLinkOutput *dlo;
49  IDeckLinkInput *dli;
50  IDeckLinkConfiguration *cfg;
51  IDeckLinkAttributes *attr;
54 
55  /* DeckLink mode information */
56  BMDTimeValue bmd_tb_den;
57  BMDTimeValue bmd_tb_num;
58  BMDDisplayMode bmd_mode;
59  BMDVideoConnection video_input;
60  BMDAudioConnection audio_input;
61  int bmd_width;
64 
65  /* Capture buffer queue */
67 
68  /* Streams present */
69  int audio;
70  int video;
71 
72  /* Status */
75  int64_t last_pts;
76  unsigned long frameCount;
77  unsigned int dropped;
81 
82  /* Options */
85  int64_t teletext_lines;
86  double preroll;
90  int draw_bars;
91 
94 
98 
99  int channels;
100 };
101 
103 
104 #ifdef _WIN32
105 #if BLACKMAGIC_DECKLINK_API_VERSION < 0x0a040000
106 typedef unsigned long buffercount_type;
107 #else
108 typedef unsigned int buffercount_type;
109 #endif
110 IDeckLinkIterator *CreateDeckLinkIteratorInstance(void);
111 #else
112 typedef uint32_t buffercount_type;
113 #endif
114 
115 static const BMDAudioConnection decklink_audio_connection_map[] = {
116  (BMDAudioConnection)0,
117  bmdAudioConnectionEmbedded,
118  bmdAudioConnectionAESEBU,
119  bmdAudioConnectionAnalog,
120  bmdAudioConnectionAnalogXLR,
121  bmdAudioConnectionAnalogRCA,
122  bmdAudioConnectionMicrophone,
123 };
124 
125 static const BMDVideoConnection decklink_video_connection_map[] = {
126  (BMDVideoConnection)0,
127  bmdVideoConnectionSDI,
128  bmdVideoConnectionHDMI,
129  bmdVideoConnectionOpticalSDI,
130  bmdVideoConnectionComponent,
131  bmdVideoConnectionComposite,
132  bmdVideoConnectionSVideo,
133 };
134 
135 HRESULT ff_decklink_get_display_name(IDeckLink *This, const char **displayName);
136 int ff_decklink_set_format(AVFormatContext *avctx, int width, int height, int tb_num, int tb_den, enum AVFieldOrder field_order, decklink_direction_t direction = DIRECTION_OUT, int num = 0);
137 int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);
138 int ff_decklink_list_devices(AVFormatContext *avctx, struct AVDeviceInfoList *device_list, int show_inputs, int show_outputs);
139 void ff_decklink_list_devices_legacy(AVFormatContext *avctx, int show_inputs, int show_outputs);
142 int ff_decklink_init_device(AVFormatContext *avctx, const char* name);
143 
144 #endif /* AVDEVICE_DECKLINK_COMMON_H */
pthread_cond_t cond
Format I/O context.
Definition: avformat.h:1349
HMTX pthread_mutex_t
Definition: os2threads.h:49
pthread_mutex_t mutex
#define height
AVPacketList * last_pkt
uint16_t width
Definition: gdv.c:47
AVPacketList * first_pkt
unsigned long long size
Stream structure.
Definition: avformat.h:889
AVFieldOrder
Definition: avcodec.h:1739
int64_t max_q_size
AVFormatContext * avctx
List of devices.
Definition: avdevice.h:460
DWORD HRESULT
const char * name
Definition: opengl_enc.c:103